IVV vs SMOX
iShares Core S&P 500 ETF vs Horizon Small/Mid Cap Core Equity ETF
Which is better, IVV or SMOX?
Large Cap Blend against Mid Cap Blend.
IVV has a lower expense ratio. SMOX is less concentrated, with 10.9% of the fund in its ten largest positions against 38.9%.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | IVV | SMOX |
|---|---|---|
| Expense Ratio | 0.03%Best | 0.75% |
| AUM | $896.5B | $152M |
| Dividend Yield | 1.10% | 0.07% |
| Holdings | 508 | 289 |
| YTD Return | +13.59%Best | +12.80% |
| 1Y Return | +17.54% | - |
| 3Y Return (annualized) | +22.46% | - |
| 5Y Return (annualized) | +13.28% | - |
| Top 10 Weight | 38.9% | 10.9%Best |
| Fund Family | iShares by BlackRock (US) | Horizon Funds |
| Category | Equity | Equity |
| Style | Large Cap Blend | Mid Cap Blend |
| Inception | May 15, 2000 | Dec 2, 2025 |
Not shown on this pair: Volatility (annualized), Max Drawdown, $10,000 over the window.
IVV vs SMOX growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view is available from the range buttons; it is not the opening view here because over the whole period one of these two funds moves so much further than the other that its line would sit flat on the axis.
IVV vs SMOX Performance
iShares Core S&P 500 ETF (IVV) is an ETF from iShares by BlackRock (US) and Horizon Small/Mid Cap Core Equity ETF (SMOX) is an ETF from Horizon Funds. Year to date, IVV is up 13.59% versus a gain of 12.80% for SMOX.
Past performance does not guarantee future results.
Fees and Cost Over Time
IVV charges 0.03% per year while SMOX charges 0.75%. On a $10,000 position that is $3 vs $75 annually, a gap of $72 per year that compounds over a long holding period. On income, IVV currently yields 1.10% against 0.07% for SMOX.
Holdings Overlap
0.1% of IVV's money is in holdings SMOX also owns. 0.5% of SMOX's money is in holdings IVV also owns.
We cannot see either book well enough to say how much of this pair is duplicated.
1 positions in common, counted across the 506 positions we hold weights for in IVV and 285 in SMOX, against full books of 508 and 289.
What only one of them owns
Our book lists 276 positions for SMOX that do not appear in our book for IVV (96.6% of the fund), and 499 for IVV that do not appear in SMOX (99.4%).
Some of those will be the same company recorded under a different code in one of the two books, so the real difference in what you would own is no larger than this and may be smaller. We do not name the individual positions here for that reason.
Top Shared Holdings
| Stock | Weight in IVV | Weight in SMOX | Difference |
|---|---|---|---|
| ILMNIllumina, Inc. | 0.06% | 0.54% | 0.48% |
You are not choosing between two funds in isolation.
Whichever of IVV and SMOX you pick has to sit alongside everything else you own. Add the rest and see what the combination actually holds.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, IVV or SMOX?
IVV has an expense ratio of 0.03% while SMOX charges 0.75%. IVV is the cheaper option, by $72 a year on a $10,000 investment.
Which pays a higher dividend, IVV or SMOX?
IVV yields 1.10% while SMOX yields 0.07%, so IVV currently pays the higher dividend yield.
Is SMOX better than IVV?
IVV has a lower expense ratio. SMOX is less concentrated, with 10.9% of the fund in its ten largest positions against 38.9%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.